Unfortunately, I have had to do a lot of reading on this lately as well as I suspect an eye issue with my bengal ... They are prone to a novel version of Progressive Retinal Atrophy, cataracts and several other eye disorders.
It doesn't seem to be a result of breeding for a specific trait, rather, it appears to have developed due to breeding within the limited gene pool of the breed itself. Inbreeding, line-breeding and selective breeding have led to these issues ... Unfortunately, in the cases of most of these issues, there was no test to determine if a cat carried a defective gene and defective gene carriers were asymptomatic. It wasn't until litters were born with issues that people realized there was a genetic component.
UCDavis has only recently come out with a test that is meant to identify animals that possess faulty genes that result in kittens being affected with PRA.
https://www.vgl.ucdavis.edu/services/cat/BengalPRA.php